Home / 5,317.60-7,976.17-1,422.01

Finding the Fourth Proportional to 5,317.60, 7,976.17 and 1,422.01

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Solution

The fourth proportional to 5,317.60, 7,976.17 and 1,422.01 is: 2,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.60 : 7,976.17 = 1,422.01 : x
  2. Step 2: Convert to fraction form
    5,317.60/7,976.17 = 1,422.01/x
  3. Step 3: Cross multiply
    5,317.60x = 7,976.17 × 1,422.01
  4. Step 4: Simplify right side
    5,317.60x = 11,342,160.38
  5. Step 5: Solve for x
    x = 11,342,160.38/5,317.60
  6. Step 6: Final answer
    x = 2,132.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.